DRM/i915: Get rid if the 'hotplug_supported_mask' in struct drm_i915_private.

Now since we have replaced the bits to show interest in hotplug IRQs
we can go and nuke the 'hotplug_supported_mask'.

Signed-off-by: Egbert Eich <[e-mail]>
Acked-by: Chris Wilson <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>

drivers/gpu/drm/i915/i915_drv.h

···
 	u32 irq_mask;
 	u32 gt_irq_mask;
 
-	u32 hotplug_supported_mask;
 	struct work_struct hotplug_work;
 	bool enable_hotplug_processing;
 

drivers/gpu/drm/i915/intel_crt.c

···
 	 */
 	crt->force_hotplug_required = 0;
 
-	dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS;
-
 	/*
 	 * TODO: find a proper way to discover whether we need to set the the
 	 * polarity and link reversal bits or not, instead of relying on the

drivers/gpu/drm/i915/intel_dp.c

···
 		name = "DPDDC-A";
 		break;
 	case PORT_B:
-		dev_priv->hotplug_supported_mask |= PORTB_HOTPLUG_INT_STATUS;
 		intel_encoder->hpd_pin = HPD_PORT_B;
 		name = "DPDDC-B";
 		break;
 	case PORT_C:
-		dev_priv->hotplug_supported_mask |= PORTC_HOTPLUG_INT_STATUS;
 		intel_encoder->hpd_pin = HPD_PORT_C;
 		name = "DPDDC-C";
 		break;
 	case PORT_D:
-		dev_priv->hotplug_supported_mask |= PORTD_HOTPLUG_INT_STATUS;
 		intel_encoder->hpd_pin = HPD_PORT_D;
 		name = "DPDDC-D";
 		break;

drivers/gpu/drm/i915/intel_hdmi.c

···
 	case PORT_B:
 		intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
 		intel_encoder->hpd_pin = HPD_PORT_B;
-		dev_priv->hotplug_supported_mask |= PORTB_HOTPLUG_INT_STATUS;
 		break;
 	case PORT_C:
 		intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
 		intel_encoder->hpd_pin = HPD_PORT_C;
-		dev_priv->hotplug_supported_mask |= PORTC_HOTPLUG_INT_STATUS;
 		break;
 	case PORT_D:
 		intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
 		intel_encoder->hpd_pin = HPD_PORT_D;
-		dev_priv->hotplug_supported_mask |= PORTD_HOTPLUG_INT_STATUS;
 		break;
 	case PORT_A:
 		intel_encoder->hpd_pin = HPD_PORT_A;

drivers/gpu/drm/i915/intel_sdvo.c

···
 			SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
 	}
 
+	/* Only enable the hotplug irq if we need it, to work around noisy
+	 * hotplug lines.
+	 */
 	if (intel_sdvo->hotplug_active)
 		intel_encoder->hpd_pin = HPD_SDVO_B ? HPD_SDVO_B : HPD_SDVO_C;
 
···
 	 * cloning for SDVO encoders.
 	 */
 	intel_sdvo->base.cloneable = false;
-
-	/* Only enable the hotplug irq if we need it, to work around noisy
-	 * hotplug lines.
-	 */
-	if (intel_sdvo->hotplug_active)
-		dev_priv->hotplug_supported_mask |= hotplug_mask;
 
 	intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);